[PATCH] drm/doc: use proper cross-references for sections

[Simon Ser]

When I originally wrote these docs, I couldn't manage to insert a
cross-reference to a section. Here's how it can be done.

Signed-off-by: Simon Ser <contact at emersion.fr>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Pekka Paalanen <pekka.paalanen at collabora.com>
---
 Documentation/gpu/drm-kms.rst | 2 ++
 Documentation/gpu/drm-mm.rst  | 2 ++
 include/uapi/drm/drm.h        | 9 ++++-----
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst
index c92d425cb2dd..ca9210e47266 100644
--- a/Documentation/gpu/drm-kms.rst
+++ b/Documentation/gpu/drm-kms.rst
@@ -360,6 +360,8 @@ Format Functions Reference
 .. kernel-doc:: drivers/gpu/drm/drm_fourcc.c
    :export:
 
+.. _kms_dumb_buffer_objects:
+
 Dumb Buffer Objects
 ===================
 
diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
index 3d5dc9dc1bfe..513197359aba 100644
--- a/Documentation/gpu/drm-mm.rst
+++ b/Documentation/gpu/drm-mm.rst
@@ -517,6 +517,8 @@ DRM Cache Handling and Fast WC memcpy()
 .. kernel-doc:: drivers/gpu/drm/drm_cache.c
    :export:
 
+.. _drm_sync_objects:
+
 DRM Sync Objects
 ===========================
 
diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
index 863e47200911..75ec985d95e5 100644
--- a/include/uapi/drm/drm.h
+++ b/include/uapi/drm/drm.h
@@ -673,8 +673,8 @@ struct drm_gem_open {
  * Bitfield of supported PRIME sharing capabilities. See &DRM_PRIME_CAP_IMPORT
  * and &DRM_PRIME_CAP_EXPORT.
  *
- * PRIME buffers are exposed as dma-buf file descriptors. See
- * Documentation/gpu/drm-mm.rst, section "PRIME Buffer Sharing".
+ * PRIME buffers are exposed as dma-buf file descriptors.
+ * See :ref:`prime_buffer_sharing`.
  */
 #define DRM_CAP_PRIME			0x5
 /**
@@ -756,15 +756,14 @@ struct drm_gem_open {
 /**
  * DRM_CAP_SYNCOBJ
  *
- * If set to 1, the driver supports sync objects. See
- * Documentation/gpu/drm-mm.rst, section "DRM Sync Objects".
+ * If set to 1, the driver supports sync objects. See :ref:`drm_sync_objects`.
  */
 #define DRM_CAP_SYNCOBJ		0x13
 /**
  * DRM_CAP_SYNCOBJ_TIMELINE
  *
  * If set to 1, the driver supports timeline operations on sync objects. See
- * Documentation/gpu/drm-mm.rst, section "DRM Sync Objects".
+ * :ref:`drm_sync_objects`.
  */
 #define DRM_CAP_SYNCOBJ_TIMELINE	0x14
 
-- 
2.41.0